0.5m~12m Black/Galvanized/Paint Square Section Steel Tube

• Type: Welded
• Technique: ERW
• Material: Carbon Steel
• Surface Treatment: Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Od: 20mm*20mm~750mm*750mm
• Thickness: 1.0mm~20mm
• Length: 0.5m~12m
• Surface: Black/Galvanized/Paint
• Transport Package: Package by Bundle
• Specification: Q195/Q235/Q345
• Trademark: FRD
• Origin: Made in China
• HS Code: 7306900
• Production Capacity: 30000tons

Product Description

Material type	Hot rolled weld square steel pipe
Out diameter	10-600mm
Thickness	0.5-30.0mm
Length	3-12m or as per customers' requirements
Material	Q195-Grade B, SS330, SPC, S185 Q215-Grade C,CS Type B, SS330, SPHC Q235---Grade D, SS400, S235JR, S235JO, S235J2 Q345---SS500, ST52
Standard	GB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88 BS1387/1985,ASTM A53/A36,EN39/EN10219,API 5L,GB/T9711.1-99 etc
Surface treatment	Galvanized,or black
Zinc coating	pre galvanized steel pipe: 60-150g/m2 hot dipped galvanized steel pipe:200-400g/m2
Application	Widely used in Structure, Accessorize,Construction, Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on
Package	1) Big OD: in bulk 2) Small OD: packed by steel strips 3) Plastic bags 4) According to customer's requirement5) 25 tons/container and 5 tons/size for a trial order; 6) For 20" container the max length is 5.8m; 7) For 40" container the max length is 11.8m.
MOQ	2MT as trial order
Delivery time	Within 7-15 days after receiving the 30% TT deposit
Payment	30%TT in advance and the balance against the copy of B/L or irrevocable L/C at sight

Specifiction list
OD mm	WT mm	OD mm	WT mm	OD mm	WT mm	OD mm	WT mm
15x15	0.5-2.0	28x28	0.5-3.0	75x75	1.0-5.0	160x160	2.5-12
16x16	0.5-2.0	30x30	0.5-3.25	80x80	1.0-5.0	180x180	2.5-12
18x18	0.5-2.0	35x35	0.5-3.5	90x90	1.0-6.0	200x200	2.5-12
19x19	0.5-2.0	40x40	0.8-3.75	100x100	1.0-6.0	300x300	2.5-12
20x20	0.5-3.0	50x50	0.8-3.75	120x120	2.5-12	400x400	2.5-12
24x24	0.5-3.0	60x60	1.0-4.0	140x140	2.5-12	500x500	2.5-12
25x25	0.5-3.0	70x70	1.0-5.0	150x150	2.5-12	600x600	2.5-12

Material list
Elements	Chemical Composition%					Mechanical Property
Material	C%	Mn%	S%	P%	Si%	Yield Point	Tensile Strength	Elongation
						(Mpa)	(Mpa)	(%)
Q195	0.06-0.12	0.25-0.50	<0.05	<0.045	<0.3	>195	315-430	32-33
Q235	0.12-0.2	0.30-0.70	<0.045	<0.045	<0.3	>235	375-500	24-26
Q345	<0.20	1.0-1.6	<0.04	<0.04	<0.55	>345	470-630	21-22

What is black square&rectangular steel pipe?

Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding. Before welding two pipes together, avoid any gaps between the two pipes. While welding, take measures to ensure the continual alignment of the two pipes.

What is pre galvanized square&rectangular steel pipe?

The pre-galvanized welded steel piperefers to welded tube which undergo degreasing,rush removal,phosphorization,zand drying processes before galvanization.The treatments before galvanization allow the product to be conveniently plated with a zinc coating,and also ensure uniform coating thickness,strong coating adhesion,and improved corrosion resistance

What is hot dipped galvanized square&rectangular steel pipe?

Hot-dip galvanizing (HDG), as referenced is the process of dipping fabricated steel into a kettle or vat of molten zinc. While the steel is in the kettle, the iron metallurgically reacts with the molten zinc to form a tightly-bonded alloy coating that provides superior corrosion protection to the steel..